Int. J. Financ. Stud. 2015, 3, 351-380; doi:10.3390/ijfs3030351 OPEN ACCESS International Journal of Financial Studies ISSN 2227-7072 www.mdpi.com/journal/ijfs Article The Swiss Black Swan Bad Scenario: Is Switzerland Another Casualty of the Eurozone Crisis? Sebastien Lleo 1 and William T. Ziemba 2;3;* 1 Finance Department, NEOMA Business School, Reims, 51100, France; E-Mail:
[email protected] 2 Sauder School of Business, University of British Columbia, Vancouver, V6T 1Z2 BC, Canada 3 Systemic Risk Centre, London School of Economics, London, WC2A 2AE, UK * Author to whom correspondence should be addressed; E-Mail:
[email protected]; Tel.: +1-604-261-1343. Academic Editors: Marida Bertocchi and Rita L. D’Ecclesia Received: 28 May 2015 / Accepted: 16 July 2015 / Published: 12 August 2015 Abstract: Financial disasters to hedge funds, bank trading departments and individual speculative traders and investors seem to always occur because of non-diversification in all possible scenarios, being overbet and being hit by a bad scenario. Black swans are the worst type of bad scenario: unexpected and extreme. The Swiss National Bank decision on 15 January 2015 to abandon the 1.20 peg against the Euro was a tremendous blow for many Swiss exporters, but also Swiss and international investors, hedge funds, global macro funds, banks, as well as the Swiss central bank. In this paper, we discuss the causes for this action, the money losers and the few winners, what it means for Switzerland, Europe and the rest of the world, what kinds of trades were lost and how they have been prevented.